I'm shopping for a new outboard to go on my inflatable, weight is a big issue as I have to lift the motor on and off each time we use it. Weight eliminates the 4 strokes for me, and I've narrowed my search down to a Yamaha 15 hp 2 stroke in manual start and short shaft. Any issues with this motor than I need to be concerned with? I have never owned a Yam outboard before, but I know their sleds seem to be pretty high quality. Would appreciate any advise. Thanks.